| XRAY - Model racing cars https://setup.teamxray.com/xsetup/legacy/ |
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| 007 and the 13.5 Brushless https://setup.teamxray.com/xsetup/legacy/viewtopic.php?f=8&t=5630 |
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| Author: | Peter Szuhai [ Thu Jun 07, 2007 15:02:52 ] |
| Post subject: | 007 and the 13.5 Brushless |
The 13.5 Novak brushless motor is getting really popular around here and all over in the US. This motor needs a crazy gearing around 4.8-5.0 FDR with Rubber Tires or around 40mm rollout (reference for the Foam guys). Using the Xray 84 tooth 48dp spur the biggest pinion which fits is 29. That gives a 4.92 FDR on rubber tires (and the desired 40mm rollout if you use 63mm dia tires) but leaves no options to go higher on a real big track. On foam however with the ideal 56-57mm the rollout ends up being around 36mm which is low for that motor. An 80 tooth spur would solve the problems. Is there a plan to make one? Or is there anybody who makes one which fit? Orion and LRP is comming out with their own 13.5 turn brushless and I bet we will have the same problem with those. The "slow" brushless motor is very appealing to the masses who can't control a 3.5 turn so I think it's popularity will grow even more in the future... |
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| Author: | THancock [ Thu Jun 07, 2007 15:19:03 ] |
| Post subject: | |
I use the new(er) RW Racing spur gears which fit the layshaft adaptor and let you access the motor mount screws. |
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| Author: | ErwinMvdB [ Thu Jun 07, 2007 19:58:10 ] |
| Post subject: | |
I use Robitronic (Delrin) spurs. Perfect fit, little smaller, and easy acces for the mtor mount screws. I use a 75T spur for driving with a 5cell t2'007 and a Team Orion Element 19T V2 motor (pinion 34t) |
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| Author: | Peter Szuhai [ Fri Jun 08, 2007 15:58:51 ] |
| Post subject: | |
Unfortunately Robitronic is not available in the US...  I did buy some RW spurs before for my 05 but never used them because of the thick web which would require 8mm long screws to secure them. I bet they did change that design since then...
I would still prefer original Xray stuff. It seems it is not just the 13.5 brushless but the 5 cell 19T needs those extreme ratios as well... One more reason to make 'em... 
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| Author: | SlamMan [ Tue Jun 12, 2007 03:07:25 ] |
| Post subject: | |
www.PrecisionRacingSystems.com You can get them at www.NexusRacing.net too. Great gears with the holes for accessing the motor mount screws. |
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| Author: | Peter Szuhai [ Wed Jun 13, 2007 15:55:35 ] |
| Post subject: | |
Thanks, I've found RW spurs on http://www.ampdraw.com/ , they will arrive today so I will post how they work out. On the weekend I've got a 96tooth Kimbrough 64dp gear from a fellow racer and purchased a 64dp 36 tooth pinion for it just for the race... Unfortunately the kimbrough spur is old style it has no holes to access the motor mounting screws on the 007 - I had extremely hard time adjusting gear mesh - I don't recommend those for the 007. I hope the RWs will work out... if not I will go with the PR (Nexus does not carry the 48dp but PR has an online shop...) Robitronic has a US site but they don't have an online shop (I'm just too lazy to call them and make a special order). |
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| Author: | oldcarguy [ Wed Jun 13, 2007 23:44:19 ] |
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Doh |
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| Author: | Peter Szuhai [ Sun Jun 17, 2007 02:53:45 ] |
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